In a bowl mix Sour cream,mayonnaise ,chipotle chili powder ,hot sauce ,minced garlic ,honey and salt. Mix well. If not using immediately then cover and refrigerate untill use.
Chop hard boiled eggs. Transfer to a big bowl. Add chopped onion.
Add the cream sauce to chopped egg. Mix well. Adjust the seasoning by adding more salt if required.
Toast bread. Spread butter. Divide egg salad among 3 slices of bread. Top it with micro greens(if using). Place another slice of toasted bread on top. Serve.